Can someone please identify this mushroom for me?

Question

It popped up mysteriously next to my potted Meyer lemon tree.

Here is a link to a photo:

http://img.photobucket.com/albums/v193/amorphousplasma/10.jpg

Thanks!

Answer 1

Looks like deadly angel caps.

Answer 2

http://www.capsandstems.com/id.htm

http://www.mushroomexpert.com/

http://perrone.blogs.com/horticultural/2006/01/online_mushroom.html